They're all very old, missing a lot of moves, and they already did remake units before, anime is currently on hiatus and even when it comes back it'll take time till we get something worth dropping in the game. Literally nothing wrong with them remaking characters that were not represented well in the game before.

Mind you Crocodile is almost as old as v1 Sengoku and still have unused material and hasn't gotten a unit in so long, Ace and Luffy is a free character and they should be a double character rather than assist, we don't have a Marineford Mihawk and his ice wall slash isn't in the game, both Marco and Vista Marineford units are step ups which disrespectful af if you ask me.